Erica learns her partner, Malik, is a Visitor and must fight for her life - literally - to stop Anna from finding out she's Fifth Column. Meanwhile, Anna learns that Malik is missing and orders Ryan to find her, while Lisa realizes her body is beginning to change, causing her to become more and more like her mother.
Elenco: Elizabeth Mitchell , Morena Baccarin , Alan Tudyk , Brittney Irvin , Charles Mesure , Christopher Shyer , David Richmond-Peck , Joel Gretsch , Laura Vandervoort , Logan Huffman , Lourdes Benedicto , Mark Hildreth , Morris Chestnut , Scott Wolf .